Well after a lot of searching I finally decided on one and hooked it up tonight. I took a shot at one that seemed nice for the price and so far I'm very happy with the results. Being in a high clay zone our water is naturally high in minerals so I figured the DI filter wouldnt hurt to add in order to get the cleanest water possible.
I hope this helps a lot of you guys that are debating on one, so far after 1 night the results are great IMO.
The only downside I find to it is that clean water is a tad slow to come out but that is the case with all units. That is just the process of RO in general. This unit claims to get about 1-2 gallons an hour. I believe the ratio is 4:1 waste to pure.
It's very light and compact, and as you can see I placed mine on top of a toilet in our un-used 1/2 bath downstairs. It connects directly to the faucet through an attachment and comes with tubing as well as a plastic valve for on and off control.
I *so far* highly recommend the Mighty Mite simply due to the price ~$130 and the results ( from 262 ppm to <.01). Replacement filters are $33. It's an overall save for me as I was going through 6 gallons a week and needing more most of the time. The same company manufactures another model without the DI filter, but for an extra 20 bucks it's worth the investment.
System: RO/DI Mighty Mite
Manufacturer: Air Water & Ice
Price: ~$130 including shipping
Results: Dropped from 262 ppm to <.01 ppm
Weight: 7 lbs
Number of filters: 4
Rate: 1-2 gallons per hr
Replacement filters: $33
Block or granulated: Granulated Carbon filter
Here is the after math and the difference in water quality, sorry for the low light conditions.
Hope this helps some of you!